<?php
// 清文件缓存
$dirs = array(
    realpath(dirname(__FILE__) . '/../data/cache_data'),
    realpath(dirname(__FILE__) . '/../data/cache_file'),
    realpath(dirname(__FILE__) . '/../data/cache_view')
);
 
// 清理缓存
foreach($dirs as $dir) {
    do_rmdir($dir, false);
    echo "<div style='border:2px solid green; background:#f1f1f1; padding:20px;margin:20px;width:800px;font-weight:bold;color:green;text-align:center;'>\"" . $dir . "\" have been cleaned clear! </div>";
}
 
/**
 * 清空/删除 文件夹
 * @param string $dirname 文件夹路径
 * @param bool $self 是否删除当前文件夹
 * @return bool
 */
function do_rmdir($dirname, $self = true) {
    if (!file_exists($dirname)) {
        return false;
    }
    if (is_file($dirname) || is_link($dirname)) {
        return unlink($dirname);
    }
    $dir = dir($dirname);
    if ($dir) {
        while (false !== $entry = $dir->read()) {
            if ($entry == '.' || $entry == '..') {
                continue;
            }
            do_rmdir($dirname . '/' . $entry);
        }
    }
    $dir->close();
    $self && rmdir($dirname);
}